Siempre is an infinity scarf knit in fingering weight yarn--and Knit Picks has some beautiful ones to choose from. The yarn used in the book is Stroll Glimmer, which, as you can see, has a hint of shimmer. (I used a sunny yellow to knit up my sample, and as soon as things get settled around here, I'll dig it up to share.) It requires a single 100g skein of sock yarn to create this versatile
fall accessory--wear it long like a necklace, or double loop it for
warmth.

The scarf features complementary lace and cable patterns, and a slip stitch edge for a
smooth finish.
It's knit flat from a provisional cast on, with the ends grafted together for a seamless look.

The individual pattern is available for download for just $4.99, or buy the whole collection: the ebook with 7 patterns is just $9.99. If you'd like a print edition (and who wouldn't?), that's available too, for $14.99.